| * | Player is part of the International Player Pathway program — has a roster exemption that doesn't count towards 90-man offseason roster or the 16-player limit on the practice squad |
| ^ | Player on reserves list who is eligible to return during this season after missing a minimum of four games |
| 18 S/3 | Player drafted in third round of 2018 NFL supplemental draft by their current team |
| 18/3 | Player drafted in third round of 2018 NFL draft by their current team |
| CC | Cap casualty |
| CC/Atl | Cap casualty signing from Atlanta |
| CE | Commissioner's Exempt List — doesn't count as part of the 53-man roster |
| CF18 | Player signed as an undrafted college free agent in 2018 |
| CFA or UDFA | Undrafted college free agent |
| D/C | Draft choice |
| DFR | Player Designated for Return from reserve list — a 21-day window where a player can practice with their team before being added to the 53-man active roster. If they don't get activated within that time frame, then they will miss the rest of the season |
| DNR | Did Not Report list |
| ERFA | Exclusive rights free agent |
| FP | Player had a franchise tag placed on them |
| FUT | Player signed to a future contract |
| IR | Injured Reserve list |
| NAME ALL CAPS | Player age 30 or older as of the current month |
| NFI | Non-Football Injury or Non-Football Illness list |
| P/Mia | Player signed from Miami's practice squad |
| PS or P/SQ | Practice squad |
| PS/IR or PS/INJ | Practice squad player placed on injured list |
| PUP | Physically Unable to Perform list |
| R/Dal | Restricted free agent signed from Dallas |
| RFA | Restricted free agent |
| SF18 | Player signed as a street free agent in 2018 |
| SFA | Street free agent |
| SUS | Player was suspended by NFL or current team |
| T V V | Terminated Vested Veteran — player was released and is not subjected to waivers |
| T/Car | Player acquired in trade from Carolina |
| U/Arz | Unrestricted free agent signed from Arizona |
| UFA | Unrestricted free agent |
| W/Pit | Player acquired via waiver claim from Pittsburgh |